Most cost estimates for current automotive lithium ion batteries are in the $1,000-1,200 / kWh range. General Motors has not revealed the cost of the battery for the Chevrolet Volt, but executives have hinted at a production cost of approximately $600 / kWh. The U.S. Advanced Battery consortium has a target of $400 by mid-decade.
If Nissan is truly able to produce the Leaf battery at such a low cost, that would be a major breakthrough. Unlike the Volt's pack and some other batteries, which are liquid cooled, Nissan is using air cooling for the Leaf pack which would reduce cost a bit but certainly not anywhere close to these figures. Nissan has not yet responded to a request for further comment.
[Source: Times of London]